Members of the Stirlingshire-based Clanranald Trust, who perform medieval battle re-enactments, were used to carry out stunts for the show.

The BBC’s offering will be fronted by Oliver and fellow archaeologist Tony Pollard, and will also offer recreations of the battle as well as the results of an excavation which took place recently.

But the corporation refused to provide more details.

Fife-based Herald Events and Films was mostly filmed in Fife and stars Jock Ferguson as the Bruce.

It will include vignettes from his life to help teachers discuss the king’s life.

Mr Ferguson said: “It is unfortunate that Hollywood has portrayed Bruce as a coward and a betrayer of William Wallace, which is complete twaddle.

“Both Wallace and Bruce were fully supported by the church in Scotland, particularly in Fife by Bishop William Lamberton, and where one began a process along with Sir Andrew de Moray, it was Bruce who finished the job.”